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The production of micro parts made of alloys like Al-bronze by casting techniques requires specially designed investments with sufficient mechanical and thermal stability. For damage free deflasking, good solubility of at least one component of the burned mold is required. Furthermore, especially when the micro parts are meant to mechanically interact with each other in a micro system, the surface...
This paper investigates the friction and wear characteristics of two typical hydrodynamic bearings for hard disk drive (HDD) spindle motors (SPM), i.e., the herringbone groove and multi-taper bearings, during start-up and shut-down transient operation. The friction characteristics are calculated by a lubricated friction model which is an extension of Kogut and Etsion’s dry friction model (a modified...
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